She had read about it (from the book apparently, she seems to have full knowledge of it) and tried it out on a story, after having thought of herself as strictly a pantser. She does a pretty good in-depth breakdown, that gets into a little more detail than you usually see in the articles and blog entries about it. It's only part 1 though, she said she'd be doing a part 2, which I don't see on her channel. But this was only a month ago, it might still be forthcoming. I decided to put it in Plot Development, even though it really covers both story and character development. I also decided not to double-spam the forum with it in both.